Sex Bob-omb is Scott Pilgrim's band. It is made up of Scott Pilgrim on bass, Kim Pine on drums, and Stephen Stills on guitar and vocals. The band was founded by Stephen 'The Talent' Stills. They get a gig at the Rockit following the band Crash and the boys. As they start singing their set they get interrupted by Ramona Flower's first evil ex Matthew Patel.
In the movie The Sex Bob-ombs are actually in a battle of the bands with Crash and the boys, which they win by default as Crash and the boys are killed by a stray fireball from Matthew Patel. There are also a few original songs that were written for the movie. The songs are 'Threshold', 'Garbage Truck', and 'Summertime'.